Comment on theory of lasers without inversion

Shi Yao Zhu*, Jim Cresser, Heidi Fearn

*Corresponding author for this work

Research output: Contribution to journalReview articlepeer-review

2 Citations (Scopus)


We prove that lasing without inversion is impossible in the three-level system with two active upper levels that are mixed by applied low-frequency electromagnetic radiation. Such lasing was recently proposed by Blok and Krochik [Phys. Rev. A 41, 1517 (1990)].

Original languageEnglish
Pages (from-to)5170-5172
Number of pages3
JournalPhysical Review A
Issue number9
Publication statusPublished - 1991


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